Tubes not alveolar 
Tubes very irregular , stipe 
U! 
ually thick nd polished. 
P /f 
Stipe 
pileus umbili cate, tough, yellowi sh white with brown 
marginal band, cilia short, fugacious 
, V variiporus 
luces regular ; stipe slender, not polished; plants rather 
delicate, cilia variable in form and persistence 
Pileus opapue, not translucent, 1-4 cm, cilia long, of uncert 
durat i on ;mo stly cespitgse P. Tricholoma 
Pileus very thin, more or less translucent , 1-2 cm, cilia s 
short, slender fucacious; plants not cespitose 
P, Cowellii 
wholly blade or fuliginous, variously attached, usually 
darker than the pileus 
Pileus finely tomentose, drab colored, with reddish brown snoife 
small, circular ; tubes rounded, minute., 
Pileus not as above P, maculosus 
Tubes 0,5-1 mm 
Stipe less than 1 cm, pileus normal 
P, Wrightii 
Stipe usually very long, 1-15 emtpileus sometimes aborted, 
resembling a Xylar ia P, marasmioides 
Tubes much smaller, 4-10 to a mm, 
Pileus 12-25 cm in diam, white or pallid 
P, Underwoodii 
Pileus half this size 
Surface light colored, i sa/belline to pale umbr.inous 
stipe lateral p. subelegans 
Surface bright bay to almost black 
Stipe central, pileus proliferous at times, surf ace 
glabrous P, diabolicus 
Stipe horizontal, lateral or excentric q 3-1 
pileus 2-10 cm in diam. * 
Surface glabrous _ P, Blanchetianus 
muia.ee marked with rows of serrated black 
P. scabellus 
cm long 
s quamul e s 
Context bright yellow or red 
liymenophore distinctly stipi ta.te, context 
ye How 
Phaeolopsi s 
/eraCruci s 
PI av ip or ellu s Spl i tb er ger i 
hymenophore sessile or sub sessile 
Pores yellow, context than 
Pores red, context firm, tubes f irm,r egula^Sn^hanging S 0 n^y?5 
Context tooST pelllouloss PycnoporuP 
Hymenopliore Coltrioia spathulota 
Spores hyaline 
Context lignt brov/n, tough, not encrusted 
. Surface glabrous or nee.rly so 
uileus less tha.n 1 cm thick Pavolus 
ourfM.ce marked with teiite and light brown zones 
F. tenuis 
ourface variegated tth dark brown and purple zones 
-p, • T 1 . Sa^xasEcxvariegatus 
x-ileus o- 3 cm thick, surface azonate 
• — . , P. leprosus 
S? r ?l d Hapalopilus licnoides 
Surface distinctly hairy Coriolopsis 
Tubes small and regula,r Coriolopsis 
